<script setup lang="ts">
import type { ConsultIllness } from '@/types/consult'
// 有赞提供的类型
import type { UploaderAfterRead, UploaderFileListItem } from 'vant/lib/uploader/types'
import type { Image } from '@/types/consult'
import { computed, onMounted, ref } from 'vue'
import { uploadImage } from '@/api/consult'
import { useRouter } from 'vue-router'
import { Dialog, Toast } from 'vant'
import { useConsultStore } from '@/stores'


// 患病时间选项
const timeOptions = [
  { label: '一周内', value: 1 },
  { label: '一月内', value: 2 },
  { label: '半年内', value: 3 },
  { label: '大于半年', value: 4 }
]
// 是否就诊选项
const flagOptions = [
  { label: '就诊过', value: 0 },
  { label: '没就诊过', value: 1 }
]

// 表单变量
const form = ref<ConsultIllness>({
  illnessDesc: '',
  illnessTime: undefined,
  consultFlag: undefined,
  pictures: []
})

const fileList = ref<Image[]>([])

const store = useConsultStore()
const router = useRouter()

const onAfterRead: UploaderAfterRead = (item) => {
  // 选择一个图就是 item  选择多个图就是 item[]，我们是一个图，而且file可能不存在
  if (Array.isArray(item)) return
  if (!item.file) return
  // 上传图片
  item.status = 'uploading'
  item.message = '上传中...'
  uploadImage(item.file)
    .then((res) => {
      // 成功
      item.status = 'done'
      item.message = undefined
      // 展示图片
      item.url = res.data.url
      // 存储到form中
      form.value.pictures?.push(res.data)
    })
    .catch(() => {
      // 失败
      item.status = 'failed'
      item.message = '上传失败'
    })
}

const onDeleteImg = (item: UploaderFileListItem) => {
  // 删除图片
  form.value.pictures = form.value.pictures?.filter((pic: { url: string | undefined }) => pic.url !== item.url)
}

const disabled = computed(
  () =>
    !form.value.illnessDesc ||
    form.value.illnessTime === undefined ||
    form.value.consultFlag === undefined
)

const next = () => {
  if (!form.value.illnessDesc) return Toast('请输入病情描述')
  if (form.value.illnessTime === undefined) return Toast('请选择症状持续时间')
  if (form.value.consultFlag === undefined) return Toast('请选择是否已经问诊')
  // 存储病情描述
  store.setIllness(form.value)
  // 跳转档案管理：选择患者，需要根据 isChange 实现选择功能
  router.push('/user/patient?isChange=1')
}

onMounted(() => {
  if (store.consult.illnessDesc) {
    Dialog.confirm({
      title: '温馨提示',
      message: '是否恢复您之前填写的病情信息呢？',
      confirmButtonColor: 'var(--cp-primary)',
      closeOnPopstate: false // 是否在页面回退时自动关闭,注意默认值为true
    }).then(() => {
      // 确认
      const { illnessDesc, illnessTime, consultFlag, pictures } = store.consult
      form.value = { illnessDesc, illnessTime, consultFlag, pictures }
      // 图片回显预览
      fileList.value = pictures || []
    })
  }
})
</script>

<template>
  <div class="consult-illness-page">
    <cp-nav-bar title="图文问诊" />
    <!-- 1. 医生提示 -->
    <div class="illness-tip van-hairline--bottom">
      <img class="img" src="@/assets/avatar-doctor.svg" />
      <div class="info">
        <p class="tit">在线医生</p>
        <p class="tip">请描述你的疾病或症状、是否用药、就诊经历，需要我听过什么样的帮助</p>
        <p class="safe">
          <cp-icon name="consult-safe" /><span>内容仅医生可见</span>
        </p>
      </div>
    </div>
    <!-- 2. 病情描述-表单 -->
    <div class="illness-form">
      <!-- 病情描述-基本情况 -->
      <van-field type="textarea" rows="3" placeholder="请详细描述您的病情，病情描述不能为空" v-model="form.illnessDesc"></van-field>
      <div class="item">
        <p>本次患病多久了？</p>
        <cp-radio-btn :options="timeOptions" v-model="form.illnessTime" />
      </div>
      <div class="item">
        <p>此次病情是否去医院就诊过？</p>
        <cp-radio-btn :options="flagOptions" v-model="form.consultFlag" />
      </div>
      <!-- 病情描述-图片上传 -->
      <div class="illness-img">
        <van-uploader upload-icon="photo-o" upload-text="上传图片" max-count="9" :max-size="5 * 1024 * 1024"
          v-model="fileList" :after-read="onAfterRead" @delete="onDeleteImg"></van-uploader>
        <p class="tip">上传内容仅医生可见,最多9张图,最大5MB</p>
      </div>
    </div>
    <van-button :class={disabled} @click="next" type="primary" block round>下一步</van-button>
  </div>
</template>

<style lang="scss" scoped>
.consult-illness-page {
  padding-top: 46px;
}

.illness-tip {
  display: flex;
  padding: 15px;

  .img {
    width: 52px;
    height: 52px;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 10px;
  }

  .info {
    flex: 1;
    padding-left: 12px;

    .tit {
      font-size: 16px;
      margin-bottom: 5px;
    }

    .tip {
      padding: 12px;
      background: var(--cp-bg);
      color: var(--cp-text3);
      font-size: 13px;
      margin-bottom: 10px;
    }

    .safe {
      font-size: 10px;
      color: var(--cp-text3);
      display: flex;
      align-items: center;

      .cp-icon {
        font-size: 12px;
        margin-right: 2px;
      }
    }
  }
}

.illness-form {
  padding: 15px;

  .van-field {
    padding: 0;

    &::after {
      border-bottom: none;
    }
  }

  .item {
    >p {
      color: var(--cp-text3);
      padding: 15px 0;
    }
  }
}

.illness-img {
  padding-top: 16px;
  margin-bottom: 40px;
  display: flex;
  align-items: center;

  .tip {
    font-size: 12px;
    color: var(--cp-tip);
  }

  ::v-deep() {
    .van-uploader {
      &__preview {
        &-delete {
          left: -6px;
          top: -6px;
          border-radius: 50%;
          background-color: var(--cp-primary);
          width: 20px;
          height: 20px;

          &-icon {
            transform: scale(0.9) translate(-22%, 22%);
          }
        }

        &-image {
          border-radius: 8px;
          overflow: hidden;
        }
      }

      &__upload {
        border-radius: 8px;
      }

      &__upload-icon {
        color: var(--cp-text3);
      }
    }
  }
}

.van-button {
  font-size: 16px;
  margin-bottom: 30px;

  &.disabled {
    opacity: 1;
    background: #fafafa;
    color: #d9dbde;
    border: #fafafa;
  }
}
</style>
